.tab-child {
  font-size: 32px;
  font-family: PingFang SC;
  font-weight: 400;
  color: #fff;
}

input {
  border: none;
  outline: none;
  padding: 0;background-color: transparent;
  padding-left: 20px;
  height: 45px;
  color: #ddd;
  width: 290px;
}

.box {
  height: 111px;
  box-sizing: border-box;
}

.box:not(.box2):not(.box3) {
  border-bottom: 2px solid #fff;
}

.box1 {
  padding-top: 43px;
}

.box3 {
  display: flex;
  padding-top: 42px;
  .left {
    width: 400px;
    border-bottom: 2px solid #fff;
    .cord {
      width: 200px;
    }
  }
  button {
    width: 214px;
    height: 60px;
    border: 1px solid #fff;
    outline: none;
    color: #fff;
    background: transparent;
    position: relative;
    top: 9px;
    left: 55px;
    cursor: pointer;
  }
}

.register {
  width: 670px;
  height: 76px;
  background-color: #798C9D;
  margin-top: 97px;
  cursor: pointer;
  padding: 0;
  font-size: 36px;
  font-family: PingFang SC;
  font-weight: 400;
  color: #fff;
}

.isOk {
  font-size: 16px;
  color: #f00;
  float: right;
}
